The Bushmaster .450 - big bore power in an "AR" platform. This powerful cartridge - developed in affiliation with Hornady - is tamed by the AR type gas operating system so that recoil is reduced to a heavy thump, and second shot control is retained. Standard AR type 30 round magazines are fitted with a blue single stack follower to yield a magazine capacity of five rounds. The Bushmaster .450s are shipped with one 5 round magazine, a black web sling, operators safety manual, and orange safety block in a lockable hard plastic carrying case.